Owner's Manual

use multiple subwoofers to diffuse such sounds.
Subwoofers also offer a phase control so the upper frequencies produced will not
cancel out the lower frequencies of the satellites. Adjustment of this control can have
great effect on spectral smoothness in the crossover area. Phase changes with
frequency, however, so these controls may need readjusting every time you vary the
cutoff frequency.
The overall level of the subwoofer’s output may also be adjusted. To gain smooth
response, be careful not to set this too high.
VI. CONNECTING THE SUBWOOFER TO YOUR AUDIO SYSTEM
There are several ways to connect a subwoofer into a system. For best results
overall, we recommend using LFE or Low/Line Level connections.
When making a stereo Low/Line Level connection, be sure to follow the coding on
the cables to maintain left-to-left and right-to-right. Use high quality, well-shielded,
low capacitance RCA cables of minimal necessary length, to avoid picking up noise
in the cable runs. When making a High/Speaker Level connection, in addition to
maintaining left-to-left and right-to-right, be sure to use the coding of the pair of wires
in each speaker cable to maintain phase—+/red/rib/writing to +/red/rib/writing and
-/white/smooth/clear to -/white/smooth/clear. We recommend minimum 16 gauge
wire and, for longer runs, larger (lower gauge) wire. In multi-subwoofer systems
subwoofer inputs can be paralleled.
A. LFE Connection
Connecting Home Theatre Equipment (see Figure 1, page 16):
You can use a single RCA cable to connect the LFE/Subwoofer Output of your
receiver, integrated amplier, or preamplier to the LFE Input on the subwoofer.
Home Theatre receivers, integrated ampliers, surround sound processors, and
preampliers usually have a special Subwoofer Output to provide the optional Dolby
Digital or DTS Low Frequency Effects (LFE) Channel present on many movie and
other programming sources. To reproduce these deep-bass effects (when they are
present), supplementing the bass information in the main channels, this output must
be connected to the subwoofer.
The LFE or Subwoofer Output is ltered by most receivers/processors. The
subwoofer’s variable low pass lter is usually not required and will not affect the
frequency response of the subwoofer when using the LFE Input.
In 2-channel source material there is no information in the LFE channel. However,
bass signal can be diverted to the subwoofer by selecting the appropriate AV
receiver/processor surround mode.
B. Low/Line Level
Connecting Stereo Equipment Using Low/Line Level (See Figure 2 & 3, page
17-18):
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